.login{
    padding: 100px 50px;
    .tou{
        padding: 20px;
    }
    .hello{
        font-size: 50px;
        font-weight: bolder;
    }
    .img{
        width: 150px;
        height: 150px;
        border-radius: 50%;
    }
    .register{
        color: royalblue;
    }
    .btn{
        margin-top: 50px;
    }
}